Macronemus

Machado, Vanessa S. & Monné, Marcela L., 2013, The genus Macronemus Dejean, 1835 (Insecta: Coleoptera: Cerambycidae: Lamiinae): two new species, new records and a new synonymy, Zootaxa 3693 (2), pp. 163-181 : 166

Key to species of Macronemus

1. Elytra with large band of whitish scaly pubescence on apical 1/4; protibiae slightly curved, almost linear. Brazil (Espírito Santo, Rio de Janeiro) ( Figs 1–4 )...................................................... M. analis (Pascoe, 1866)

- Elytral scaly pubescence otherwise colored; protibiae curved................................................... 2

2. Profemora with inferior margin projected near base and with longitudinal, glabrous band where the protibial spine fits ( Figs 11 , 16–17 ); males with protibiae with a single spur and a long apical spine ( Figs. 8 , 16 ) and with fifth urosternite apical margin strongly bisinuate ( Figs 7 , 14 )............................................................................ 3

- Profemora without inferior margin projected near base and without glabrous band; protibiae with two spurs, without a spine ( Figs 22–23 ) and males with fifth urosternite apical margin from straight to slightly sinuous ( Fig. 3 )....................4

3(2). Integument brown; antennae, exceeding elytral apices, in both sexes, at antennomere 5; elytra with triangular postmedian band, parallel to the suture of dark-brown scaly pubescence and elytral basal third without defined band of brown scaly pubescence. Peru, French Guiana, Brazil (Amazonas, Pará, Rondônia) ( Figs 5–11 )................. M. rufescens (Bates, 1862)

- Integument dark-brown to black; antennae, exceeding elytral apices, in both sexes, at antennomere 6; elytra without triangular postmedian band, parallel to the suture of dark-brown scaly pubescence and elytral basal third with a curved band of brown scaly pubescence, reaching the suture. Brazil (Amapá, Amazonas), French Guiana (Bélizon) ( Figs 12–17 ).................................................................................................... M. giuglarisi sp. nov.

4(2). Pronotum with one pair of projections flattened at apex ( Fig. 24 ); elytral basal third with two eye-shaped spots of dark-brown scaly pubescence. Brazil (Bahia to Santa Catarina), Argentina ( Figs 18–26 )......................... M. mimus sp. nov.

- Pronotum with one pair of projections rounded at apex; elytral basal third otherwise colored.......................... 5

5(4). Elytral apex with one pair of subparallel bands of whitish scaly pubescence; apex of fifth urosternite in females almost not excavated ( Figs 10 , 15 ). Brazil (Minas Gerais to Rio Grande do Sul), Paraguay ( Figs 27–32 ).. M. filicornis (Thomson, 1861)

- Elytral apex with one or more pairs of oblique bands of whitish scaly pubescence; apex of fifth urosternite in females deeply excavated ( Fig. 4 ).....................................................................................6

6(5). Elytral dorsal and lateral surfaces thickly rugose. Mexico (Veracruz) to Panama, Colombia, Venezuela, Ecuador, Bolivia ( Figs 33–38 ).......................................................................... M. asperulus White, 1855

- Elytral dorsal and lateral surfaces semismooth to slightly rugose. Surinam, French Guiana, Brazil (Amapá, Amazonas, Pará, Rondônia) ( Figs 39–42 )....................................................... M. antennator (Fabricius, 1801)

Figures

FIGURES 1 – 4. Macronemus analis (Pascoe, 1866). 1 – 2, females dorsal view; 3, male fifth urosternite; 4, female fifth urosternite.

FIGURES 5 – 11. Macronemus rufescens (Bates, 1862). 5 – 6, holotype, male: 5, dorsal view; 6, labels; 7 – 8, male: 7, fifth urosternite; 8, protibial spine; 9 – 11, female: 9, dorsal view; 10, fifth urosternite; 11, profemora with inferior margin projected near base and longitudinal, glabrous band.

FIGURES 12 – 17. Macronemus giuglarisi sp. nov. 12, holotype, male, dorsal view; 13, male, dorsal view; 14, male fifth urosternite; 15, female fifth urosternite; 16, male protibia with a long apical spine; 17, female protibia apex slightly projected, without spine.

FIGURES 18 – 24. Macronemus mimus sp. nov. 18, holotype, male, dorsal view; 19 – 21, paratypes, male dorsal view; 22, male inner and outer protibial spurs subequal; 23, male inner protibial spur longer than outer; 24, pronotum projections flattened at apex.

FIGURES 27 – 32. Macronemus filicornis (Thomson, 1861). 27 – 28, holotype, male: 27, dorsal view; 28, labels; 29 – 32, males, dorsal view.

FIGURES 33 – 38. Macronemus asperulus White, 1855. 33 – 34, holotype of Macronemus verrucosus, male: 33, dorsal view; 34, labels; 35, Macronemus asperulus, holotype, female; 36 – 37, males, dorsal view; 38, female, dorsal view.

FIGURES 39 – 42. Macronemus antennator (Fabricius, 1801). 39 – 41, females, dorsal view; 42, male, dorsal view.